Wireless Microphone Network Reliability via Segmentation

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Solution Overview

Problem

Wireless microphones face challenges in maintaining reliable audio transmission over a wide range with limited transmitter power, requiring a balance between battery size, weight, and power consumption, while also adhering to regulatory standards.

Innovation Solution

A two-stage network system where multiple base stations receive wireless audio data from a microphone module and relay it to a receiver hub using Ethernet connections, allowing for dynamic selection and blending of data to reconstruct the audio waveform, optimizing signal quality and reducing errors.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If transmitter power level is increased to extend operational range, then reception reliability is improved, but power consumption increases and battery size/weight increases

Engineering Contradiction:
Improvereception reliabilityVSAvoidpower consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The system divides the reception function into multiple base stations that simultaneously receive and process the transmitted signal. Each base station captures a portion of the signal, and the receiver hub combines these multiple receptions to achieve reliable audio transmission without requiring high transmitter power.

Inventive Principle:
Principle #1Segmentation

2Reliability

If transmitter power level is increased to extend operational range, then reception reliability is improved, but battery size and weight increase

Engineering Contradiction:
Improvereception reliabilityVSAvoidbattery weight
Core Design Contradiction:
ReliabilityVSWeight of moving object

Solution Approach 1:

The reception function is segmented across multiple base stations distributed in the environment. This allows the transmitter to operate at low power while multiple receivers work together to ensure reliable signal capture, eliminating the need for a heavy battery in the portable microphone unit.

Inventive Principle:
Principle #1Segmentation

3Reliability

If multiple base stations are deployed to extend range and improve reliability, then reception quality is improved, but system complexity increases

Engineering Contradiction:
Improvereception reliabilityVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

Multiple base stations are merged into a coordinated system where each station performs the same reception function. The receiver hub combines the outputs from all base stations, creating a unified reception system that improves reliability while maintaining manageable complexity through standardized interfaces and protocols.

Inventive Principle:
Principle #5Merging (Combining)

4Use of energy by moving object

If transmitter power is reduced to decrease battery size, then operational range is limited, but power consumption is reduced

Engineering Contradiction:
Improvepower consumptionVSAvoidoperational range
Core Design Contradiction:
Use of energy by moving objectVSLength of stationary object

Solution Approach 1:

The system segments the reception task across multiple geographically distributed base stations. This allows the transmitter to use low power while the distributed receiver network collectively covers a wide area, effectively extending the operational range without increasing transmitter power or battery size.

Inventive Principle:
Principle #1Segmentation

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Extends the operational range of wireless microphones with reduced power consumption and compliance with regulatory standards, providing a higher quality audio signal by dynamically selecting the best signal from multiple base stations.

Implementation Method 1

audio information may be wirelessly communicated to another location

Methodology Applied
Scientific EffectElectromagnetic radiation: Electromagnetic Induction

Implementation Method 2

each of them will present a distinct level of electromagnetic coupling and noise level or interference

Methodology Applied
Scientific EffectElectromagnetic coupling: Electromagnetic Induction

Data Source

PatentUS10433084B2Network system for reliable reception of wireless audio
Publication Date: 2019.10.01 SOUND DEVICES LLC
  • US10433084B2 patent drawing
  • US10433084B2 patent drawing
  • US10433084B2 patent drawing

AI summary

Methods and devices are provided for a wireless microphone network whereby robustness for reception of audio information transmitted by one or more wireless microphones is enhanced. The system incorporates a dual stage network approach for collecting, transmitting and receiving audio information. In the first stage, audio information collected by one or more microphone modules is transmitted to a series of receiver base stations. In the second stage, information received at each base station is subsequently transmitted to a receiver hub that selects or augments the information to produce a high quality representation of audio information, which provides improved robustness and reliability with respect to the movement or physical placement of each microphone module.